Merge pull request #5783 from lhchavez/mwindow-coverity

mwindow: Fix a bug in the LRU window finding code

src/mwindow.c

@@ -312,9 +312,11 @@ static int git_mwindow_find_lru_file_locked(git_mwindow_file **out)
 				current_file, &mru_window, NULL, true, GIT_MWINDOW__MRU)) {
 			continue;
 		}
-		if (!lru_window || lru_window->last_used > mru_window->last_used)
+		if (!lru_window || lru_window->last_used > mru_window->last_used) {
+			lru_window = mru_window;
 			lru_file = current_file;
 		}
+	}
 
 	if (!lru_file) {
 		git_error_set(GIT_ERROR_OS, "failed to close memory window file; couldn't find LRU");